The influence of fibre wall thickness and fibril angle on fibre development in the TMP process

Marius Rusu, Sari Liukkonen, Øyvind Gregersen, Jari Sirviö

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)

Abstract

This study was designed to clarify the effect of fibril angle and fibre wall thickness on energy consumption and fibre development in the TMP process. Six logs of Scots pine and six logs of Norway spruce were selected so that the fibril angle and fibre wall thickness varied independently. The wood logs were chipped in a laboratory chipper and refined in four stages in a laboratory refiner. The investigation showed that differences in fibril angle can not explain the differences in behaviour between pine and spruce during TMP refining. Raw materials with thicker fibre walls produce more fines and external fibrillation and thus a lower SEC at a given freeness, however the effect does not seem to be strong enough to explain the difference between pine and spruce.
Original languageEnglish
Pages (from-to)6-13
Number of pages8
JournalNordic Pulp and Paper Research Journal
Volume26
Issue number1
DOIs
Publication statusPublished - 2011
MoE publication typeA1 Journal article-refereed

Fingerprint

Thymidine Monophosphate
Picea
Pinus
refiners
wood logs
Fibers
refining
Pinus sylvestris
Picea abies
raw materials
Refining
Wood
Raw materials
Energy utilization
fibre
laboratory
effect

Keywords

  • Fibre wall thickness
  • microfibril angle
  • TMP
  • energy consumption
  • fibre development

Cite this

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abstract = "This study was designed to clarify the effect of fibril angle and fibre wall thickness on energy consumption and fibre development in the TMP process. Six logs of Scots pine and six logs of Norway spruce were selected so that the fibril angle and fibre wall thickness varied independently. The wood logs were chipped in a laboratory chipper and refined in four stages in a laboratory refiner. The investigation showed that differences in fibril angle can not explain the differences in behaviour between pine and spruce during TMP refining. Raw materials with thicker fibre walls produce more fines and external fibrillation and thus a lower SEC at a given freeness, however the effect does not seem to be strong enough to explain the difference between pine and spruce.",
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author = "Marius Rusu and Sari Liukkonen and {\O}yvind Gregersen and Jari Sirvi{\"o}",
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The influence of fibre wall thickness and fibril angle on fibre development in the TMP process. / Rusu, Marius; Liukkonen, Sari; Gregersen, Øyvind; Sirviö, Jari.

In: Nordic Pulp and Paper Research Journal, Vol. 26, No. 1, 2011, p. 6-13.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - The influence of fibre wall thickness and fibril angle on fibre development in the TMP process

AU - Rusu, Marius

AU - Liukkonen, Sari

AU - Gregersen, Øyvind

AU - Sirviö, Jari

PY - 2011

Y1 - 2011

N2 - This study was designed to clarify the effect of fibril angle and fibre wall thickness on energy consumption and fibre development in the TMP process. Six logs of Scots pine and six logs of Norway spruce were selected so that the fibril angle and fibre wall thickness varied independently. The wood logs were chipped in a laboratory chipper and refined in four stages in a laboratory refiner. The investigation showed that differences in fibril angle can not explain the differences in behaviour between pine and spruce during TMP refining. Raw materials with thicker fibre walls produce more fines and external fibrillation and thus a lower SEC at a given freeness, however the effect does not seem to be strong enough to explain the difference between pine and spruce.

AB - This study was designed to clarify the effect of fibril angle and fibre wall thickness on energy consumption and fibre development in the TMP process. Six logs of Scots pine and six logs of Norway spruce were selected so that the fibril angle and fibre wall thickness varied independently. The wood logs were chipped in a laboratory chipper and refined in four stages in a laboratory refiner. The investigation showed that differences in fibril angle can not explain the differences in behaviour between pine and spruce during TMP refining. Raw materials with thicker fibre walls produce more fines and external fibrillation and thus a lower SEC at a given freeness, however the effect does not seem to be strong enough to explain the difference between pine and spruce.

KW - Fibre wall thickness

KW - microfibril angle

KW - TMP

KW - energy consumption

KW - fibre development

U2 - 10.3183/NPPRJ-2011-26-01-p006-013

DO - 10.3183/NPPRJ-2011-26-01-p006-013

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VL - 26

SP - 6

EP - 13

JO - Nordic Pulp and Paper Research Journal

JF - Nordic Pulp and Paper Research Journal

SN - 0283-2631

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